Question

Resolvendo-se a equação 2.(X+4)=4x+11 obtém- se?

Answer 1

Resposta:

X=-1,5

Explicação passo-a-passo:

2.(X+4)= 4X+11

2X+8=4X+11

2X-4X=11-8

-2X=+3 (-1)

2X=-3

X=-3/2

X=-1,5

Answer 2

$\sf 2\cdot(X+4)=4x+11\\\\\\2x+8=4x+11\\\\\\{Subtrair\:}8{\:de\:ambos\:os\:lados}\\\\\\2x+8-8=4x+11-8\\\\\\2x=4x+3\\\\\\2x-4x=4x+3-4x\\\\\\-2x=3\\\\\\\dfrac{-2x}{-2}=\dfrac{3}{-2}\\\\\\\to \boxed{\sf x=-\frac{3}{2} \approx-1,5}$